Valve



Oct. 29, 1929. M. RESEK ET Ax.

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Oct. 29, 1929.

M. RESEK ET AL VALVE Filed Dec. 3, 1926 3 Sheets-Sheet 2 J2 40 L? D @www Oct. 29, 1929. M. RESEK ET AL 1,733,204

VALVE i Filed Dec. 3, 1926 3 Sheets-Sheet 3 vvk) Patented @et 29, 1929 tlihllTE STATES @ATZNT OFFlCE MARC RESEK, 0F CLEVELAND HEIGHTS, AND JOHN .ALGER DAHLSTROM, OF EAST CLEVELAND, OHIO, ASSIG'NORS TO PERFECTION OI-IO, A CORPORATION OF OHIO STOVE COMPANY, OF CLEVELAND,

VALVE Application filed December S, R326.

This invention relates, generally, to improvements in liquid fuel stoves of the retort class, and more particularly to an improved valve that is especially suitable for use in stoves of this class for controlling the supply of gaseous fuel to the auxiliary burners.

Objects of the invention are to provide a valve that is simple and cheap of construction; that is made up largely of metal stamp- 1 ings; that is ready and convenient of assembly; that is so designed as to offer no appreciable obstruction to the passage of gas through the manifold past the burner which the valve controls; that involves a resilient connection between the valve proper and its operating member so as to allow for slight irregularities in manufacture yet insure proper closing; and that is quick acting and efficient.

The foregoing objects, with others hereinafter appearing, are attained in the construction illustrated in the accompanying drawings wherein Fig. 1 is a sectional front elevation of a stove embodying our improvements; 25 Fig. 2 is an enlarged sectional detail on the line 2 2 of F ig. 1; Fig. 3 is a horizontal section on the correspondingly numbered line of Fi 2; Fig. l is a vertical section on the line 4--4 of Fig. 2; and Fig. 5 is a bottom plan 30 view of the valve operating mechanism,

shown in detail in Figs. 2 and 4.

The stove top 1 provided with burner openings 2, is supported a suitable distance above the floor by legs 3, and extending between the a; front and rear legs at the opposite ends of the stove are end panels designated l and 5. Supported by the legs at suitable distances below and parallel with the top 1 are a burner pan G and a shelf 'i'.

Disposed horizontally within the space between the stove top 1 and the pan 6 is the burner manifold 10 which, in the present instance, consists of an integral casting involving a mixer 11, and is attached to the top by 45 a hanger l0n and a bracket 11a. Supported by the manifold beneath each of the openings Qfis a burner, the one at the right hand end of the stove being the main burner and designated 12, while the others, designated 12, are the auxiliary burners.

Serial No. 152,355.

The stove herein disclosed, so far as its general features are concerned, is substantially the same as the stove which constitutes the subject matter of a prior application filed August Q, 1926, by one of the present applicants, Reselt, and one Lee S. Chadwick, Serial No. 126,366, and which matured into Patent No. 1,701,460, on February 5, 1929. In this type of stove, and with special reference to the present disclosure, the liquid fuel is fed under air pressure from a reservoir 15 that is removably supported by a unit 16 which is carried by and extends from the end panel 5 of the stove. The unit 16 has a passageway through which the fuel is conducted to a pipe 17 that leads to the vaporizer 18, the pipe 17 including a valve 19 for controlling the flow of fuel to the retort. The retort is of the tubular type and extends across the main burner and has its discharge end projected into the mixer 11; and a valve incorporated in the inner end of the retort is adapted to be actuated, through a stem 2Q that projects from the outer end of the retort, by an operating handle 22.

To start the stove in operation the retort 18 is heated by suitable means, as by the application of the flame of a torch thereto. lVhen the retort is brought to the desired temperature, the valve 19 is opened to admit liquid fuel to the retort from the reservoir, and the ialve at the inner end of the retort is opened by means of the operating handle 22. The gas, generated in the retort, issues therefrom and commingles with the air admitted to the mixer 11 and the resultant combustible mixture flows directly to and escapes from the main burner 12 and is ignited and maintains the retort heated so as to continue the Igeneration of gas as long as the main burner is in operation. The main burner is controlled by means of the valve incorporated in the retort, as is common.

It is clear from the foregoing that so long as the stove is in use the main burner must be in operation. It is only when an additional burner or burners is or are required that one or both of the auxiliary burners is orarebroughtintouse. lfeshallnowdescribe the valve mechanism used in connection with the auxiliary burners, our description being directed to the central burner which is detailed in Figs. 2 to 5, it being understood, however, that the two auxiliary burners are the same.

For each of the burners the manifold 10 is provided with an upstanding hollow tapered boss for the reception of the burner neck 26. A tapered valve seat 27 surrounds the inner end of the bore of each of the bosses 25 to which the auxiliary burners are applied, and formed in the bottom wall of the manifold in axial alignment with each of the valve seats 27 is an opening 2S. The undersurface of the manifold about said openings is made flat, and the openings are counterbored from their lower ends to provide shoulders 29.

Fitted within the counterbore of each Iof the openings 28 is a disk 30 whose peripheral portion engages the shoulder 29, and rising from the center of the disk is a tubular guide 31 for a stem 32 which has attached to its upper end a valve 33 for cooperation with the seat 27. A plate 35 underlies the disk and is clamped between the flattened portion of the manifold and a bracket 36 that is secured to the manifold by screws 37 which extend through aligned apertures in the bracket and plate and are threaded into lugs 38 that are formed integral with the manifold.

Journaled within bearing apertures in the front and rear depending ends of each of the brackets 36 is a spindle 40 that is formed intermediate the ends of the bracket with an offset portion constituting a crank 41. Extending about or embracing the crank 41 is an open sided yoke 42 which has its upper end secured to the lower end of the stem 32, the plate 85 and the bracket 36 having openings for the accommodation of the lower end of the guide 31 where it is upset beyond the disk 30 and the corresponding end of the stein 32.

Secured, as by a rivet 43, to the inner side of the vertical branch of the yoke 42 is a leaf spring 44 which bears upon the crank 41, said spring being under tension at all times. Applied to the crank 41, on opposite sides of the yoke 42, are washers 45 that are held adjacent said yoke by cotter pins or the like 46 that are extended through holes in the crank. Secured to the forward end of each spindle 40 is an operating handle 47 by means of which the spindle may be conveniently rotated, thereby to oscillate the crank 41 and reciprocate the valve stem 82 and move the valve 30 toward and from the seat 27. To limit the rotation of the spindle the same is provided with a suitable stop which, in the present case, is comprised of a pin 40 that projects laterally from the spindle and is arran ged to engage va lug 38a that extends forwardly from the front en d of the bracket 36.

Thus it will be seen that our invention provides a very simple valve construction (the valve casing being constituted of a part of the manifold) and one that is especially suited to the purpose at hand in that the valve may be quickly opened and closed bythe partial rotation of the operating handle 47, there being no looseness between the spindle and the valve operating parts by reason of the fact that the spring 44 is stressed at all times; and since the spring can yield when the cra-nk 41 is turned to a substantially vertical position or on dead center, so to speak, it insures positive closing of the valve with out requiring accuracy in the dimensions of the parts. Furthermore, the friction created by the spring 44 tends to hold the parts in any position to which they are adjusted. Attention is called to the fact that the guide 31 and stem 32 occupy a comparatively small part of the cross sectional area of the manifold and therefore do not obstruct the passage of gas past these parts which are associated with the auxiliary burner that is disposed intermediate the ends of the manifold. Furthermore, by reason of its design, the manifold lends itself readily to manufacturing facilities. After the unit is cast, the bosses 25 and the flattened portions of the underneath surface of the manifold beneath said bosses may be readily machined, and the valve seats 27 reamed, the openings 28 coun terbored, and the lugsY 30 tapped for the screws 37, at the minimum expense of time and labor and with absolute accuracy by means of appropriately designed tools.

Inthe operation of stoves of the retort class, it frequently happens that fuel in the liquid state passes through the retort to the manifold, or condenses within the manifold, and a material accumulati-on of liquid fuel therein interferes with the operation of the burners. At such times the manifold has to be drained. Heretofore this has been accomplislied by opening a valve or removing a plug situated at a low point in the manifold and allowing the liquid contents to drain onto the burner pan, and if this is done while the stove is in operation, or otherwise and the stove lighted before the fuel evapcrates, there is great danger of the liquid fuel igniting and resulting in a fire, or injury to the user.

lVe have cvercoine this danger by connecting a drain tube 48 to a basin 49 that is formed in the lower side of the manifold, preferably beneath the discharge end of the mixer 11, and have extended the drain tube to a point below the burner pan 6. A valve 50 in the drain tube is normally closed, but when the manifold becomes flooded the valve 50 may be opened and the contents drained through the tube 48 to a receptacle which may be heldl beneath the discharge end of the tube, and the pan 6 shields the liquid fuel from the direct heat of the burner flames,

although, obviously, this should be done when the steve is not in operation.

Having thus described our invention, what We claim is l. A valve comprising a casing having an outlet opening surrounded by a valve seat, the Wall ot the casing opposite the valve seat having an opening', a member tted to and closing the last mentioned opening and incorporating a tubular guide, a stem reciprocable within said guide, a valve member carried by the inner end or" said stem for cooperation with the valve seat, an actuator fer reciiLn-ocating the valve stem, and a resilient element in the connections bet-Ween the actuator and the valve member.

2. A valve comprising a casing having an tiet opening surrounded by a valve seat, the Wall of the casing opposite the valve seat having an opening, a member fitted to and closing the last mentioned opening, a tubular guide carried by sait member, a stem reciprocable Within said guide, a valve member carried by the inner end of said stem for cooper tion with the valve seat, an actuator for reciprocating the valve stein, and a resilient element interposed between the actuating member and said stem.

3. il valve comprising a casing having an outlet opening surrounded by a valve seat, the Wall of the casing opposite the valve sea-t having an opening, a member iitted to and closing the. last mentioned opening, a tubular guide carried by said member, a stem reciprccaale Within said guide, a valve member carried by die inner end of said stem for cooperation with the valve seat, an eccentric rota Yably supported on an axis disposed transversely of and beyond the outer end of the stem, and operative connections between said eccentric and the stem.

el., valve comprising casing having an outlet opening surrounded by a valve seat, the Wall of the casing opposite the valve seat having an opening, a member tted to and closing Yhe last mentioned opening, a tubular arried by said member, a stem reocable Within said guide, a valve meml carried by the inner end of said stem fer cooneration with the valve seat, an eccentric rotatably supported on an axis disposed transversely ot and beyond the outer end or" the stem, and operative connections between said eccentric and the stem, said connections involving a resilient element.

A. valve comprising a casing having an outlet opening surrounded by a valve seat, the wall ot' the 'asing opposite the valve seat having an opening, a member litted to and closing trie last mentioned opening, a tubular guide carried by said member, a. stem reciprocable Within said guide, a. valve member carried by the inner end of said stem for cooperation with the valve seat, a spindle rotatably supported transversely of and beyond the outer end of the stem, said spindle having an eccentric portion, and operative connections between said eccentric portion and said stem.

6. A valve comprising a casing having an outlet opening surrounded by a valve seat, the Wall of the casing opposite the valve seat having an opening, a member fitted to and closing the last mentioned opening, a tubular guide carried by said member, a stem reciprocable Within said guide, a valve member carried by the inner end of said stem for cooperation with the valve seat, a spindle rotatably supported transversely of and beyond the outer end ot the stem, said spindle having an eccentric portion., and operative connections between said eccentric portion and said stem, said connections involving a resilient element,

7. A valve comprising a easing having an outlet opening surrounded by a valve seat, the Wall ot the casing opposite the valve seat having an opening, a member i'itted to and closing the last mentioned opening and incorporating a guide, a stem reciprocable Within said guide, a valve member carried by the inner end of said stem for cooperation with the valve seat, a spindle rotatably supported transversely of and beyond the outer eno. of the stem, said spindle having an eccentric portion, operative connections between said eccentric portion and said stem, and a stop for limiting the rotation of the spindle.

8. A valve comprising a casing having an outlet opening surrounded by a valve seat, the Wall of the casing opposite the valve seat having an opening in axial alignment with said seat, the outer end of the last mentioned opening being counterbored, a disk fitted Within the counterbore, a tubular guide projecting from the center of said disk into the casing, a. stem reciproca-ble Within said guide, a valve member carried by the inner end ot said stem for cooperation with the valve seat, and an actuator for reciprocating the valve stem.

9. A valve comprising a casing having an outlet opening surrounded by a valve seat, the Wall of the casing opposite the valve seat having an opening in axial alignment with said seat, the outer end of the last mentioned opening being counterbored, a dislr fitted Within the counterbore, a tubular guide projecting from the center ot' said disl; into the casing, a stem reciprocable Within said guide, a valve member carried by the inner end of said stem for cooperation with the valve seat, a member secured to the Wall of the casing across the second mentioned opening and serving to hold the aforesaid disk in place, and operating means carried by said member for reciprocating the valve stem.

lO. A valve comprising a casing having an outlet opening surrounded by a valve seat, the Wall of the casing opposite the valve seat having an opening in axial alignment With said seat, the outer end of the last mentioned opening being counterbored, a disk fitted Within the counterbore, a tubular guide projecting from the center of said disk into the casing, a stem reciprocable Within said guide, a valve member carried by the inner end of said stem for cooperation with the valve seat, a bracket secured to the Wall of the casing across the second mentioned opening and serving to hold the aforesaid disk in place, said bracket having depending ends, a spindle journaled Within apertures in the depending ends of said bracket, the spindle being provided with an eccentric portion intermediate said ends of the brackets, and operative connections between the aforesaid stem and the eccentric portion of the spindle.

11. A valve comprising a casing having an outlet opening surrounded by a valve seat, the Wall of t ie casing'opposite the valve seat having an opening, a member fitted to and closing the last mentioned opening and incorporating a guide, a stem reciprocable Within said guide, a valve member carried by the inner end of said stem for cooperation With the valve seat, a bracket secured to the Wall of the casing across the second mentioned opening and serving to hold the first mentioned member in place, said bracket having depending ends, a spindle journaled Within apertures in the depending ends of said bracket, the spindle being provided With an eccentric portion intermediate said ends of the bracket, a yoke applied to the outer end of thc stem and embracing the eccentric portion of the spindle.

12. A valve comprising a casing having an outlet opening surrounded by a valve seat, the Wall of the casing opposite the valve seat having an opening, a member closing the last mentioned opening and incorporating a guide, a stem reeiprocable Within said guide, a valve member carried by the inner end of said stem for cooperation with the valve seat, a spindle rotatably supported transversely of and beyond the outer end of said stem and having an eccentric portion, a yoke applied to the outer end of the stem and embracing the eccentric portion of the spindle, and a spring carried by said yoke and between which and an opposed portion of the yoke the eccentric portion of the spindle is adapted to operate.

13. A valve comprising a casing having an outlet opening surrounded by a valve seat, the Wall of the casing opposite the valve seat having an opening, a disk fitted Within the last mentioned opening, a tubular guide projecting from said disk into the casing, a stem reciprocable Within said guide, a valve member carried by the inner end of said stem for cooperation With the valve seat, a bracket secured to the Wall of the casing across the secondfmentioned opening and serving to hold the aforesaid disk in place, said bracket having depending ends, a spindle journaled Within apertures in the depending ends of said bracket, the spindle being provided with an eccentric portion intermediate said ends of the bracket, a yoke applied to the outer end of the stem and embracing the eccentric portion of the spindle, and collars on the spindle on opposite sides of said yoke.

14. A valve comprising a casing having an outlet opening surrounded by a valve seat, the Wall of the casing opposite the valve seat having an opening in axial alignment with said seat, the outer end of the last mentioned opening being counterbored, a disk fitted Within the counterbore, a tubular guide projecting from the center of said disk into the casing, a stem reciprocable Within said guide, a valve member carried by the inner end of said stem for cooperation with the valve seat, a plate applied to the Wall of the casing across the second mentioned opening and serving to maintain the aforesaid disk in place, a bracket applied to the plate, fastening means securing the bracket and plate to the casing, a spindle rotatably supported by the bracket transversely of the axis of the stem, the spindle having an eccentric portion, and operative connections between said eccentric portion and the stem.

15. A valve comprising a casing having an opening, a member fitted to and closing said opening, a tubular guide carried by said member, a stem reciprocable Within said guide, a valve member Within the casing having operative connection With the inner en-d of said stem, an eccentric rotatably supported on an axis disposed transversely of and beyond the outer end of the stem, and means on the stem embracing said eccentric so that the stem is positively moved in opposite directions by the oscillation of the eccentric.

16. A valve comprising a casing having an opening, a member fitted to and closing said opening and incorporating a guide, a stem reciprocable Within said guide, a valve member in the casing having operative connection with the inner end of said stem, a spindle rotatably supported transversely of and beyond the outer end of the stem, said spindle having an eccentric portion, operative connections between said eccentric portion and said stem, and a stop for limiting the rotation of the spindle.

17. A valve comprising a casing having an opening, a member closing said opening and incorporating a guide, a stem reciprocable Within said guide, a valve member in the casing having operative connection with the inner end of said stem, a spindle rotatably supported transversely of and beyond the outer end of said stem and having an eccentric portion, a yoke applied to the outer end of the stem and embracing the eccentric portion of the spindle, and a spring carried by said yoke and between which and an opposed portion of the yoke the eccentric portion of the spindle is adapted to operate.

In testimony whereof, We hereunto ax our signatures.

MARC RESEK. JOHN ALGER DAHLSTROM. 

